[EN] METHOD FOR INCORPORATING PROTECTING ACETAL AND ACETAL ESTER GROUPS, AND ITS APPLICATION FOR THE PROTECTION OF HYDROXYL FUNCTION<br/>[FR] PROCÉDÉ POUR INCORPORER DES GROUPES ACÉTAL ET ESTER D'ACÉTAL PROTECTEURS ET SON APPLICATION POUR LA PROTECTION DE LA FONCTION HYDROXYLE
申请人:INST CHEMII BIOORG POLSKIEJ AKADEMII NAUK
公开号:WO2014148928A1
公开(公告)日:2014-09-25
The present invention is the method for incorporation of acetal and acetal ester groups for protection of hydroxyl function. The method is applied in particular in the processes of RNA synthesis. The method can be employed in the synthesis of nucleosides with acetal and acetal ester groups for the protection of hydroxyl functions. The method according to the invention consists of the reaction of an organic compound containing at least one hydroxyl group, soluble in an aprotic solvent, with a compound of the general formula 1, R1 -S-CH2 -O-R2(1) in the presence of SnCl4, in an aprotic solvent. In the second aspect, the present invention is the method of protecting the hydroxyl function, particularly in position 2', in nucleoside derivatives, based on the incorporation of an acetal or acetal ester group.
本发明涉及一种用于保护羟基功能的缩醛和缩醛酯基团的引入方法。该方法特别适用于RNA合成过程中。该方法可用于合成带有缩醛和缩醛酯基团以保护羟基功能的核苷类化合物。根据本发明的方法包括将至少含有一个羟基的有机化合物与通式1,R1 -S-CH2 -O-R2(1)的化合物在无水溶剂中,在SnCl4的存在下反应。在第二方面,本发明涉及一种用于保护羟基功能,特别是在核苷类衍生物中2'位的方法,基于引入缩醛或缩醛酯基团。